3D sand mould printing: a review and a new approach

2018 ◽  
Vol 24 (2) ◽  
pp. 285-300 ◽  
Author(s):  
Donghua Zhao ◽  
Weizhong Guo ◽  
Baibing Zhang ◽  
Feng Gao
Keyword(s):  
Large Scale ◽  
Manufacturing Industry ◽  
Dimensional Accuracy ◽  
Time Analysis ◽  
New Approach ◽  
Content Type ◽  
On Line ◽  
Sand Mould ◽  
First Time ◽  
Practical Implications

Purpose The purpose of this paper is to review available technologies, analyse their features, propose a new approach of 3D sand mould printing based on line forming, introduce the manufacturing principle and show advantages of this approach, especially for larger parts with large Z steps in the build, such as 2 mm stepwise. Design/methodology/approach This paper introduces 3D sand mould printing, compares and analyses technological process and existing fabrication approaches among available technologies first. Then, a new approach of 3D sand mould printing is proposed to improve build speed. In addition, the proposed system will be analysed or benchmarked against existing systems. Findings A new approach based on line forming of sand mould printing is put forward by reviewing and analysing available technologies, to improve build speed from the aspect of basic moulding movement instead of optimization of moulding methods and process parameters. The theoretical calculation and analysis shows that build speed can be improved greatly, and it is more suitable for the manufacture of large-scale casting’s sand mould when considering dimensional accuracy and printing error, as well as uniformity of each layer. Research limitations/implications The specific implement scheme of line forming and nozzle’s specific structure of this new approach need further study. Practical implications Much higher build speed of 3D sand mould printing with new approach brings evident implication for moulds companies and manufacturing industry, having a far-reaching influence on the development of national economy. Originality/value This paper reviews available technologies and presents a new approach of 3D sand mould printing for the first time. Analysis of the new approach shows that this new method of sand mould printing can boost build speed greatly. So, its application prospect is great.

SRI’s turnaround: how four principles guided high-value, market-creating innovation

2017 ◽  
Vol 45 (4) ◽  
pp. 3-8
Author(s):  
Steve Denning
Keyword(s):  
Business Model ◽  
Customer Value ◽  
Large Scale ◽  
Leadership Strategies ◽  
Content Type ◽  
Value Propositions ◽  
On Line ◽  
Market Needs ◽  
Working Hypotheses ◽  
Practical Implications

Purpose The article explores the leadership strategies of a CEO who defied the odds against culture change and accomplished a storied turnaround, Curt Carlson who introduced a culture of innovation at SRI International. Design/methodology/approach Under Carlson’s leadership, SRI developed a methodology for rapid, large-scale, serial innovation, starting with a focus on important customer and market needs. The innovation proposals had to develop compelling hypotheses for both the product offering and the business model. Findings Need, Approach, Benefits per costs and Competition (NABC). the methodology Carlson and his team developed, contains the fundamental framework for creating customer value, it applies to the entire enterprise. It brings all functions together using a short, easy to remember meme that starts every conversation with a focus on customer need. Practical implications One of the most spectacular and best-known SRI innovation wins was Siri, the intelligent personal computer assistant and on-line knowledge navigator, an integral part of the iPhone. As a case example, Siri illustrates the power of the NABC approach. Originality/value Carlson stresses that the key element in SRI’s success with Siri was not just the technology. It was getting the entire value proposition right. “One of the things that changed at SRI was the realization that we needed to have really solid working hypotheses, both for the product and the business model, before we started spending significant money on technology. That’s one of the biggest mistakes firms make. They rush ahead and want to build the product before they de-risk their value propositions.

Time to raise the bar on nonprofit strategic planning and implementation

2014 ◽  
Vol 42 (3) ◽  
pp. 31-39 ◽  
Author(s):  
Margaret F. Reid ◽  
Lynne Brown ◽  
Denise McNerney ◽  
Dominic J. Perri
Keyword(s):  
Strategic Planning ◽  
Strategic Management ◽  
Large Scale ◽  
Management Practices ◽  
Content Type ◽  
Large Scale Survey ◽  
Broad Cross Section ◽  
First Time ◽  
Plan Management ◽  
Practical Implications

Purpose – This large-scale survey, initiated in 2012 and concluded in 2013, marked the first time a broad cross-section of the nonprofit community was asked to describe the strategic planning and strategic management practices they employ and to rate them for their impact on overall organizational success. Design/methodology/approach – Respondents were asked to self-rate their organization for overall success and the likelihood for continued success in the foreseeable future. Results from this data were then used as a filter to analyze practices across all responses by level of success (N = 507). Findings – Fully 93 percent of the most successful organizations, regardless of size or budget, credited their strategic planning and strategic-management efforts as having “some” to “critical” impact on their organization’s overall success. Practical implications – The evidence in this survey is so compelling that we believe the successful practices it identifies should be adopted by nonprofits of all sizes, demanded by boards, and supported by funders. Originality/value – This research indicates that funders should consider not only supporting strategic plan development, but also supporting development of ongoing plan management/implementation practices and requiring plan assessment reports/updates as part of the grantee’s reporting

The required specifications of a fourth-generation university to shape innovation district under anchor approach: a meta-synthesis analysis using text mining

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amir Asgari ◽  
Ali Khorsandi Taskoh ◽  
Saeed Ghiasi Nodooshan
Keyword(s):  
Text Mining ◽  
Design Methodology ◽  
Large Scale ◽  
Academic Development ◽  
Fourth Generation ◽  
Mining Method ◽  
Content Type ◽  
Shaping Process ◽  
First Time ◽  
Practical Implications

Purpose This paper aims to introduce a conceptual model for the shaping of the innovation district under the anchor approach by extracting the specifications of the fourth-generation university. Design/methodology/approach This study selected 550 resources and reduced them to 190 to achieve the most appropriate resources. This study used a meta-synthesis analysis approach using a text-mining method due to the multidisciplinary and voluminous nature of contents. Findings The results first reveal the shaping process and the components of innovation districts, which are: innovational urban infrastructures, knowledge economy and competitiveness and academic development. Second, this study also shows the specifications of a fourth-generation university to shape innovation districts. Practical implications This study also informs the policymakers and researchers internationally about the implementation requirements of a fourth-generation university and the shaping mechanisms of an innovation district. Originality/value This paper is pioneer about two concepts, first, it shows the shaping process of an innovation district, providing a large-scale insight about the components and second, this illustrates for the first time the specifications of a fourth-generation University practically as an anchor institute to shape innovation district.

On maximum achievable speeds for field solvers

2014 ◽  
Vol 24 (7) ◽  
pp. 1537-1544 ◽  
Author(s):  
Rainald Löhner ◽  
Joseph D. Baum
Keyword(s):  
Large Scale ◽  
Content Type ◽  
Flow Solver ◽  
Large Scale Problems ◽  
Expected Performance ◽  
Depth Analysis ◽  
Flow Speeds ◽  
Time Required ◽  
First Time ◽  
Practical Implications

Purpose – Prompted by the empirical evidence that achievable flow solver speeds for large problems are limited by what appears to be a time of the order of O(0.1) sec/timestep regardless of the number of cores used, the purpose of this paper is to identify why this phenomenon occurs. Design/methodology/approach – A series of timing studies, as well as in-depth analysis of memory and inter-processors transfer requirements were carried out for a typical field solver. The results were analyzed and compared to the expected performance. Findings – The analysis shows that at present flow speeds per core are already limited by the achievable transfer rate to RAM. For smaller domains/larger number of processors, the limiting speed of CFD solvers is given by the MPI communication network. Research limitations/implications – This implies that at present, there is a “limiting useful size” for domains, and that there is a lower limit for the time it takes to update a flowfield. Practical implications – For practical calculations this implies that the time required for running large-scale problems will not decrease markedly once these applications migrate to machines with hundreds of thousands of cores. Originality/value – This is the first time such a finding has been reported in this context.

A “Learning from Action” workshop in Japan

2019 ◽  
Vol 40 (2) ◽  
pp. 77-83
Author(s):  
Robert Douglas Hinshelwood ◽  
Luca Mingarelli ◽  
Simona Masnata
Keyword(s):  
Far East ◽  
Opportunity To Learn ◽  
Content Type ◽  
Work Activities ◽  
Defensive Role ◽  
Feedback Data ◽  
Experiential Workshop ◽  
First Time ◽  
Practical Implications

Purpose Many people in severe mentally disturbed states do not use language or other symbolic media well or coherently. Therefore, the non-verbal medium needs to be understood by workers with such people. The “Learning from Action” experiential workshop was developed in order to provide an opportunity to learn about hidden messages in the relationships and roles occurring in activities. In August 2017, a workshop was run for the first time in Japan. The purpose of this paper is to report the experience and dynamics observed by the three consultants, who are here the authors of this paper. Design/methodology/approach After the workshop all the staff and members, including interpreters, were invited to give feedback. Findings Analysis of the feedback data showed certain important dynamics, concerning especially dependence, cultural defences and the defensive role of activity in a multicultural context. Research limitations/implications This is an initial experience to be followed up by later feedback and further workshops. Practical implications Workers awareness of non-verbal communication within the roles of work activities is a training possibility. It faces various resistances including the mental health assumptions of meaninglessness of any communication outside the verbal. Originality/value This is a method of training not widely used even in European countries, and is the first in a country in the far east.

Development of insect repellent finish by a simple coacervation microencapsulation technique

2018 ◽  
Vol 30 (2) ◽  
pp. 152-158 ◽  
Author(s):  
Rachna Sharma ◽  
Alka Goel
Keyword(s):  
Essential Oils ◽  
Design Methodology ◽  
Insect Repellent ◽  
New Approach ◽  
Content Type ◽  
Eucalyptus Oil ◽  
Gum Acacia ◽  
Major Benefit ◽  
Natural Insecticide ◽  
Practical Implications

Purpose The paper focused onto the development of microcapsules by using two essential oils. It proposes the uses of eucalyptus oil and cedarwood oil as a natural insecticide. The purpose of this paper is to demonstrate the application of developed microcapsules to impart insect repellency on textile substrate. Design/methodology/approach The paper opted for an experimental study using two essential oils and gum in formations of microcapsules through a simple coaseravtion encapsulation technique. The developed solution was analyzed, including confirmation of size and structure through. Application of developed finish on substrate was also undertaken to prove better ability as repellent fabric. Findings The paper highlights useful invention of microencapsulated fabric developed with the combination of gum acacia and eucalyptus oil as core and shell material. The developed fabric has better ability to repel silverfish as compared to microencapsulated fabric developed with gum acacia (shell) and cedarwood oil (core). Research limitations/implications Due to the lack of time and less availability of essential oils, only two oils were used to test the insect repellent behavior. Practical implications This paper fulfills an identified need, it includes implications for the development of a very useful natural insecticide to repel silverfish (Lepisma saccharina) insect. This insect is a very common problem found in cloth wardrobes and bookshelves; it mainly attacks the fabric with cellulosic content and starch. Social implications Society will get major benefit of using these microencapsulated finished fabrics, which repel silverfish from their home and keep their clothing and books safe for longer period. The natural fragrance and medicinal benefits of these essential oils can never be ignored. Originality/value This study sets a new approach to repel insects like silverfish from the bookshelves and clothing wardrobes. A layer of insect repellent microencapsulated finished fabric can be added in these shelves and wardrobes. It is an eco-friendly approach of using natural essential oils instead of chemical insecticides.

A multi-manned assembly line balancing problem with classified teams: a new approach

2016 ◽  
Vol 36 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Hamid Yilmaz ◽  
Mustafa Yilmaz
Keyword(s):  
Design Methodology ◽  
Assembly Line ◽  
Assembly Line Balancing ◽  
Line Balancing ◽  
Test Problems ◽  
New Approach ◽  
Content Type ◽  
Line Test ◽  
Assembly Line Balancing Problem ◽  
First Time

Purpose – Within team-oriented approaches, tasks are assigned to teams before being assigned to workstations as a reality of industry. So it becomes clear, which workers assemble which tasks. Design/methodology/approach – Team numbers of the assembly line can increase with the number of tasks, but at the same time, due to physical situations of the stations, there will be limitations of maximum working team numbers in a station. For this purpose, heuristic assembly line balancing (ALB) procedure is used and mathematical model is developed for the problem. Findings – Well-known assembly line test problems widely used in the literature are solved to indicate the effectiveness and applicability of the proposed approach in practice. Originality/value – This paper draws attention to ALB problem in which workers have been assigned to teams in advance due to the need for specialized skills or equipment on the line for the first time.

Faculty/staff perceptions of a free campus fitness facility

2014 ◽  
Vol 7 (3) ◽  
pp. 156-170 ◽  
Author(s):  
Theresa C. Brown ◽  
Jennifer Volberding ◽  
Timothy Baghurst ◽  
John Sellers
Keyword(s):  
Motivational Climate ◽  
Self Report ◽  
Staff Perceptions ◽  
Content Type ◽  
Fitness Facility ◽  
Barriers To Exercise ◽  
On Line ◽  
Southern University ◽  
Practical Implications ◽  
Support Facility

Purpose – The purpose of this paper is to determine the reason for faculty and staff (N=657; 35 percent males; M age=45.20) at a large Southern university, for either using or not using the free fitness facilities on campus. Design/methodology/approach – Participants identified themselves as either current (n=306), former (n=213), or never-users (n=138) of the facilities, and completed an on-line self-report qualitative questionnaire asking them to describe their reasons for using or not using the campus fitness facilities. Findings – Thematic coding revealed that motives fell into three broad categories for all user types: personal (i.e. cost, location, social support), facility-specific (i.e. quality and amount of equipment, class variety, hours of operation), and motivational climate (i.e. feeling valued, welcomed, best effort was emphasized). Current users highlighted positive aspects of each category whereas former and never users described each category as a barrier to their exercise routines. Practical implications – The identified themes offer campus administration specific suggestions to entice more non-users and former-users to exercise in the fitness facilities available on campus. Originality/value – While researchers have considered barriers to exercise in past studies, the barriers identified were not specific to fitness facilities. The current work not only examines individuals’ reasons for choosing or not choosing a campus fitness facility for their exercise, but also compares the perspectives of former- and never-users to current-users.

FATCA violation underlies latest US tax and securities fraud charges

2015 ◽  
Vol 16 (1) ◽  
pp. 74-76
Author(s):  
Miriam Fisher ◽  
Brian McManus
Keyword(s):  
Law Enforcement ◽  
Service Providers ◽  
Task Force ◽  
Tax Compliance ◽  
Financial Fraud ◽  
Securities Fraud ◽  
Content Type ◽  
The Impact ◽  
First Time ◽  
Practical Implications

Purpose – To explain the details and implications of a September 9, 2014 federal indictment, US v. Robert Bandfield, the first time a Foreign Account Tax Compliance Act (FATCA) violation has been charged as an “overt act” in furtherance of a tax conspiracy and securities fraud. Design/methodology/approach – Provides background, including the enactment of FATCA and the details of the indictment; describes an undercover investigation conducted by President Obama’s Financial Fraud Enforcement Task Force; and discusses the warnings this indictment sends to the global financial community. Findings – The indictment confirms the coordinated and aggressive tactics US law enforcement is now employing to investigate and prosecute offshore financial fraud. Practical implications – Banks and financial service providers need to be aware of the impact of enhanced US regulatory obligations and implement appropriate compliance measures. These institutions must also remain sensitive to risks presented by unscrupulous customers. Finally, they must be ready to manage appropriately information-gathering and investigatory inquiries originating with US authorities. Originality/value – Practical guidance from experienced tax controversy lawyers.

How “The Three Rules” guide strategy and investment decisions at Deloitte Consulting LLP

2015 ◽  
Vol 43 (3) ◽  
pp. 7-14 ◽  
Author(s):  
Jim Moffatt
Keyword(s):  
Design Methodology ◽  
Large Scale ◽  
Investment Decisions ◽  
Decision Makers ◽  
Research Project ◽  
Content Type ◽  
First Case ◽  
Practical Implications ◽  
Thought Leadership

Purpose – This case example looks at how Deloitte Consulting applies the Three Rules synthesized by Michael Raynor and Mumtaz Ahmed based on their large-scale research project that identified patterns in the way exceptional companies think. Design/methodology/approach – The Three Rules concept is a key piece of Deloitte Consulting’s thought leadership program. So how are the three rules helping the organization perform? Now that research has shown how exceptional companies think, CEO Jim Moffatt could address the question, “Does Deloitte think like an exceptional company?” Findings – Deloitte has had success with an approach that promotes a bias towards non-price value over price and revenue over costs. Practical implications – It’s critical that all decision makers in an organization understand how decisions that are consistent with the three rules have contributed to past success as well as how they can apply the rules to difficult challenges they face today. Originality/value – This is the first case study written from a CEO’s perspective that looks at how the Three Rules approach of Michael Raynor and Mumtaz Ahmed can foster a firm’s growth and exceptional performance.

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